Jaxon was born in August 2014, with a rare condition called microhydranencephaly — an extreme brain malformation with no cure, according to CNN. Doctors didn't expect Jaxon to survive a week, ABC News reports, but so far he's defied all odds and lived past his first birthday — a "miraculous milestone," his parents wrote — and is still going strong.

"Tonight, we started watching Rudolph and Jaxon became very talkative with Mommy," he continued. "Lots of snuggling, lots of talking, and he's getting better each day with interacting and communicating with us, and now even playing with us. More big milestones for our little guy!"

Apparently, Jaxon is quite the Christmas fanatic. In another Facebook post, his dad shared a photo of "a happy Jaxon looking at and feeling the Christmas tree. He got so excited!"